CVE-2025-15457
Published: 05 January 2026
Summary
CVE-2025-15457 is a medium-severity Improper Authentication (CWE-287) vulnerability in 1234N Minicms. Its CVSS base score is 6.9 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 39.5th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 AC-3 (Access Enforcement) and IA-2 (Identification and Authentication (Organizational Users)).
Deeper analysis
CVE-2025-15457 is an improper authentication vulnerability (CWE-287) affecting bg5sbk MiniCMS versions up to 1.8. The issue resides in an unknown function within the file /minicms/mc-admin/post.php, part of the Trash File Restore Handler component. Published on 2026-01-05, it carries a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L), indicating high severity due to its network accessibility and lack of prerequisites.
Remote attackers require no privileges or user interaction to exploit this vulnerability. Successful manipulation enables limited impacts on confidentiality, integrity, and availability, potentially allowing unauthorized access or actions via the trash file restore functionality. An exploit has been publicly disclosed and could be actively used.
Advisories from VulDB (ctiid.339490, id.339490, submit.725139) and a GitHub issue (ueh1013/VULN/issues/12) detail the flaw, noting that the vendor was contacted early but provided no response. No patches, mitigations, or vendor fixes are referenced.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-0912
Vulnerability details
A vulnerability was found in bg5sbk MiniCMS up to 1.8. The impacted element is an unknown function of the file /minicms/mc-admin/post.php of the component Trash File Restore Handler. Performing a manipulation results in improper authentication. It is possible to initiate…
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the attack remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
CVE-2025-15457 is an improper authentication vulnerability in a public-facing web application (MiniCMS admin component), directly enabling remote exploitation without privileges or interaction, matching T1190: Exploit Public-Facing Application.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Enforces approved authorizations for logical access, directly preventing unauthorized remote manipulation of the trash file restore handler due to improper authentication.
Requires unique identification and authentication for organizational users accessing admin functions, comprehensively addressing the CWE-287 improper authentication flaw.
Mandates timely identification, reporting, and correction of system flaws like the unpatched improper authentication in MiniCMS /mc-admin/post.php.